Senior Software Engineer | Python, Test Automation & AI | Full-Stack Web & Mobile Development | 7+ Years Experience | EU-based
Aktualisiert am 12.08.2026
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 12.08.2026
Verfügbar zu: 100%
davon vor Ort: 100%
Python
Test Automation
AI & LLM
Full-Stack Development
Git
Mobile Apps
CI/CD
DevOps
Machine Learning
React
Testautomatisierung
SQL
TypeScript
Angular
Docker
Kotlin
JavaScript
WordPress
React Native
n8n
openAI
English
Verhandlungssicher
Deutsch
Fortgeschritten
Hungarian
Muttersprache

Einsatzorte

Einsatzorte

Saarbrücken (+300km)
Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

2 Jahre 8 Monate
2024-01 - heute

Freelance Developer & Consultant

Python TypeScript React ...

- Built custom WordPress, Next.js, and Angular websites with Shopify/WooCommerce integrations

- Developed cross-platform React Native apps for Android & iOS 

- Integrated LLMs (OpenAI) and RAG pipelines using Python and n8n - automated marketing and content workflows

- Managed everything from client acquisition, scoping, development, testing, deployment, and post-launch maintenance

Python TypeScript React Next.js React Native WordPress Shopify n8n Docker CI/CD
Saarbrücken, Germany
2 Jahre 1 Monat
2021-08 - 2023-08

Test Automation Engineer

Python PyTest Selenium ...

The Challenge:

An AI-powered real-time personalization and recommendation system (REST API) had a failing test suite that took 17 hours to run?blocking deployments and delaying releases.

What I Did:

- Fixed 1,000+ failing Python tests- Reduced execution time from 17 hours to 8 hours (over 50% reduction)

- Integrated tests into CI/CD pipeline for automated daily runs

- Implemented BDD frameworks and clear stakeholder reporting- Enabled daily deployments instead of weekly deployments

Python PyTest Selenium Appium Browserstack REST API CI/CD
XRoadMedia GmbH
Vienna, Austria
2 Jahre 1 Monat
2019-08 - 2021-08

Software Engineer

Python PyTest Oracle SQL ...

- Built a new Python test framework for a real-time pricing system

- Wrote automated tests and Python data-processing daemons

- Presented new features and developments directly to clients (early client-facing experience)

- Managed feature delivery from specification to production deployment

Python PyTest Oracle SQL PostgreSQL REST APIs JIRA Confluence
Rubin Informatika Kft
Budapest, Hungary
8 Monate
2019-01 - 2019-08

Frontend Developer

Angular TypeScript Perl ...

- Developed a web application for health education

- Angular / TypeScript frontend with Perl backend

- Collaborated with international team across Hungary and USA 


Angular TypeScript Perl HTML5 CSS
CAE Healthcare Kft
Veszprém, Hungary

Aus- und Weiterbildung

Aus- und Weiterbildung

2016 - 2019
Study - Computer Science
University of Pannonia, Faculty of Information Technology Veszprem (Hungary)
  • Title of thesis: on request
Degree: Bachelor of Science

Position

Position

I am looking for projects where I can apply my expertise in:

- Test Automation & QA Engineering

- AI & LLM Integration

- Full-Stack Development (Web & Mobile)

- Business Process Automation


I work 100% remote, part-time or full-time, and I'm based in Saarbrücken, Germany.Available for projects across EU.

Kompetenzen

Kompetenzen

Top-Skills

Python Test Automation AI & LLM Full-Stack Development Git Mobile Apps CI/CD DevOps Machine Learning React Testautomatisierung SQL TypeScript Angular Docker Kotlin JavaScript WordPress React Native n8n openAI

Schwerpunkte

Softwareentwicklung
Test/QA
Automatisierung

Aufgabenbereiche

Softwareentwicklung
Testmanagement
Projektleitung
Beratung

Produkte / Standards / Erfahrungen / Methoden

Python
Test Automation
AI
Full-stack
React
Next.js
React Native
Docker
CI/CD
WordPress
TypeScript
Angular
PostgreSQL
n8n
OpenAI
LLM
Shopify
Javascript
HTML5
CSS
Supabase
MS SQL
MySQL
Testomat
SikuliX
Appium
Browserstack
Selenium
Postman
Pytest
GIT
Jira
Confluence
BDD
MQTT
Scrum
Senior Software Engineer with 7+ years of experience across the full development lifecycle, from requirements gathering and architecture design to development, testing, deployment, and maintenance.

As a freelancer, I manage the entire project lifecycle: client acquisition, project scoping, development, QA, deployment, and post-launch support. This means you get a single point of contact who takes full ownership of delivery.

What I deliver:

- Test Automation at Scale: Fixed 1,000+ failing tests and reduced execution time from 17 hours to 8 hours for an AI-powered recommendation system.


- AI & Automation: Built LLM integrations, RAG pipelines, and business automations using Python, n8n, and OpenAI.


- Web & Mobile Development: Cross-platform apps (React Native, Android & iOS), custom websites (WordPress, Next.js, Angular), and e-commerce solutions (Shopify, WooCommerce).


- Full Project Ownership: I handle everything?development, testing, deployment, CI/CD, client communication, and ongoing maintenance.


I speak English (C1), Hungarian (native), and German (B1, working towards B2). Based in Saarbrücken, working across the EU?100% remote or hybrid.

Betriebssysteme

Linux
macOS
Windows

Programmiersprachen

Python
Perl
C
C++
Bash
Common Lisp
Kotlin

Datenbanken

PostgreSQL
MySQL
SQLite
Oracle
MS SQL

Datenkommunikation

REST
APIs
MQTT

Design / Entwicklung / Konstruktion

Softwareentwicklung

Branchen

Branchen

E-Commerce
Automotive
Healthcare
SaaS / Software-as-a-Service
Marketing & Media
Logistics

Einsatzorte

Einsatzorte

Saarbrücken (+300km)
Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

2 Jahre 8 Monate
2024-01 - heute

Freelance Developer & Consultant

Python TypeScript React ...

- Built custom WordPress, Next.js, and Angular websites with Shopify/WooCommerce integrations

- Developed cross-platform React Native apps for Android & iOS 

- Integrated LLMs (OpenAI) and RAG pipelines using Python and n8n - automated marketing and content workflows

- Managed everything from client acquisition, scoping, development, testing, deployment, and post-launch maintenance

Python TypeScript React Next.js React Native WordPress Shopify n8n Docker CI/CD
Saarbrücken, Germany
2 Jahre 1 Monat
2021-08 - 2023-08

Test Automation Engineer

Python PyTest Selenium ...

The Challenge:

An AI-powered real-time personalization and recommendation system (REST API) had a failing test suite that took 17 hours to run?blocking deployments and delaying releases.

What I Did:

- Fixed 1,000+ failing Python tests- Reduced execution time from 17 hours to 8 hours (over 50% reduction)

- Integrated tests into CI/CD pipeline for automated daily runs

- Implemented BDD frameworks and clear stakeholder reporting- Enabled daily deployments instead of weekly deployments

Python PyTest Selenium Appium Browserstack REST API CI/CD
XRoadMedia GmbH
Vienna, Austria
2 Jahre 1 Monat
2019-08 - 2021-08

Software Engineer

Python PyTest Oracle SQL ...

- Built a new Python test framework for a real-time pricing system

- Wrote automated tests and Python data-processing daemons

- Presented new features and developments directly to clients (early client-facing experience)

- Managed feature delivery from specification to production deployment

Python PyTest Oracle SQL PostgreSQL REST APIs JIRA Confluence
Rubin Informatika Kft
Budapest, Hungary
8 Monate
2019-01 - 2019-08

Frontend Developer

Angular TypeScript Perl ...

- Developed a web application for health education

- Angular / TypeScript frontend with Perl backend

- Collaborated with international team across Hungary and USA 


Angular TypeScript Perl HTML5 CSS
CAE Healthcare Kft
Veszprém, Hungary

Aus- und Weiterbildung

Aus- und Weiterbildung

2016 - 2019
Study - Computer Science
University of Pannonia, Faculty of Information Technology Veszprem (Hungary)
  • Title of thesis: on request
Degree: Bachelor of Science

Position

Position

I am looking for projects where I can apply my expertise in:

- Test Automation & QA Engineering

- AI & LLM Integration

- Full-Stack Development (Web & Mobile)

- Business Process Automation


I work 100% remote, part-time or full-time, and I'm based in Saarbrücken, Germany.Available for projects across EU.

Kompetenzen

Kompetenzen

Top-Skills

Python Test Automation AI & LLM Full-Stack Development Git Mobile Apps CI/CD DevOps Machine Learning React Testautomatisierung SQL TypeScript Angular Docker Kotlin JavaScript WordPress React Native n8n openAI

Schwerpunkte

Softwareentwicklung
Test/QA
Automatisierung

Aufgabenbereiche

Softwareentwicklung
Testmanagement
Projektleitung
Beratung

Produkte / Standards / Erfahrungen / Methoden

Python
Test Automation
AI
Full-stack
React
Next.js
React Native
Docker
CI/CD
WordPress
TypeScript
Angular
PostgreSQL
n8n
OpenAI
LLM
Shopify
Javascript
HTML5
CSS
Supabase
MS SQL
MySQL
Testomat
SikuliX
Appium
Browserstack
Selenium
Postman
Pytest
GIT
Jira
Confluence
BDD
MQTT
Scrum
Senior Software Engineer with 7+ years of experience across the full development lifecycle, from requirements gathering and architecture design to development, testing, deployment, and maintenance.

As a freelancer, I manage the entire project lifecycle: client acquisition, project scoping, development, QA, deployment, and post-launch support. This means you get a single point of contact who takes full ownership of delivery.

What I deliver:

- Test Automation at Scale: Fixed 1,000+ failing tests and reduced execution time from 17 hours to 8 hours for an AI-powered recommendation system.


- AI & Automation: Built LLM integrations, RAG pipelines, and business automations using Python, n8n, and OpenAI.


- Web & Mobile Development: Cross-platform apps (React Native, Android & iOS), custom websites (WordPress, Next.js, Angular), and e-commerce solutions (Shopify, WooCommerce).


- Full Project Ownership: I handle everything?development, testing, deployment, CI/CD, client communication, and ongoing maintenance.


I speak English (C1), Hungarian (native), and German (B1, working towards B2). Based in Saarbrücken, working across the EU?100% remote or hybrid.

Betriebssysteme

Linux
macOS
Windows

Programmiersprachen

Python
Perl
C
C++
Bash
Common Lisp
Kotlin

Datenbanken

PostgreSQL
MySQL
SQLite
Oracle
MS SQL

Datenkommunikation

REST
APIs
MQTT

Design / Entwicklung / Konstruktion

Softwareentwicklung

Branchen

Branchen

E-Commerce
Automotive
Healthcare
SaaS / Software-as-a-Service
Marketing & Media
Logistics

Vertrauen Sie auf Randstad

Im Bereich Freelancing
Im Bereich Arbeitnehmerüberlassung / Personalvermittlung

Fragen?

Rufen Sie uns an +49 89 500316-300 oder schreiben Sie uns:

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